Connecting rod for internal-combustion engines



.lime 24, 1930. H. JONES 1,765,024

CONNECT-ING ROD FOR INTERNAL COMBUSTION ENGINES Filed'June 25, 1928 Patented June v24,4 1936 PATENT fol-FICE HENRY Joints, or Ammessi, NEBRASKA coNNEcTING' non Fon INTERNAL-COMBUSTIONENdINEs Appliation mea 'June 2s,

- -cause va more even pressure upon the crank i' shaft.

With the usual type of connecting rod the explosion shock istransmitted immediately and directly through the connecting rod to the crank shaft. This results in gradual damage tothe bearings .by hammering and l creates lost motion or knocking in vthe engine.

With tlie'useof this invention the explosion shock is absorbed and stored in the rod' and, asthe pressure decreases, the rod'will expand toits normal position so as to gradually vtransmit energy of the shock to the chankshaft. f

. Other objects and advantages reside in the detail construction of the invention, which is4 designed for simplicity,'economy, and eiciency. These will become lmore apparent from the following description. In the following detailed description of the inventionreference is had to the accompanying drawing which forms a part hereof. lLike numerals refer to like-parts in allv views 3 0 of lthe drawing and throughout the descrip- Fig. 1 is a side elevation of a connecting lthe rivet '11, any suitable joining .means may be used, such as a' bolt or the ltwo parts of the strip may be welded together at this point. From the rivet 11 the two portions of the strip are liared outwardly to form a shank 12 for the rod.

'50 The extremities' of the strip have outshaped at its mid portion to form a wrist 192s. serial N61 287,987.

wardly formed feet .13, drilled. to receive crank bearing bolts 14. The bolts 14 secure a crankshaft bearing to the spring steel strip. v

The crank shaft bearing comprises an upper bearing box 15 and a lower bearing box 16, both lined with babbitt r with any suitable bearing bushing 17. he bolts 14 are provided with lock nuts 18 which act to simultaneously clamp the two parts 15 and 60 16 of the bearingG and the feet 13 of the resilient strip, together.'

In use, an explosion inthe engine will act downwardly on the wrist pin bearing l0, causing the rod to shorten as the two outwardly-flared portions of the shank l2 spring or bend inwardly, as indicated by the broken lines in Fig. 1. The greater* the explosion pressure, of course, the -further the portions will bend' inwardly. As the driv- 70 ing pressure diminishes these portions will again spring outwardly acting to increase the length of the connecting rod and transmit the absorbed energy to the crank shaft.

InFig. 3 I have illustrated an alternate 75 form of the invention in which the shank is strengthened by additional springs. In this invention the shank proper comprises a strip of resilient material 19 similar to the previously described shank 12. The strip 19 80 is, strengthened however, by additional spring leaves 20 secured thereto by means of rivets 21 orin any other desired manner.

" Thelower extremities of the additional it is desired to beunderstood that the same I maybe varied, within the scope of the appended claims, Without departing fromv the spirit of the invention.

Having thus described the invention, what I claim and desire secured by Letters Patent 1. A connecting rod for 'internal combustion engines comprising: a. crank shaft bearing;v and an endless strip of resilient 10 v metal, said strip being bent back upon itself to form aA wrist pin bearing, the extremities of said strlp being outwardl iared to a connection with said crank sha t bearing.

v2. A connecting rod for internal combustion engines comprising: a strip 'of resilient material; a cylindrical portion formed midway of said strip to recelve the wrist pin of said engine; means for securing the two portions of said strip together adjacent said cylindrical portion; feet formed on the ex.

tremities of said strip, the strip between said cylindrical portion and said feet bein spread apart; a crank shaft bearing; and means for securing said feet to said crank shaft bearing.

3. A connecting rod for connecting a crank shaft bearing with a wrist pin bearing comprising: two resilient legs extending from a spaced Vapart relation at said crank shaft bearingto contact with each other at said wrist pin bearing; and arranged to compress toward each other as said crank shaft bearing approaches said wrist pin bearing.

4. A connecting rod for connecting a crank shaft bearing with a wrist pin'bearing comprising: two resilient legs extending from a spaced apart relation at said crank shaft bearing to contact with each other at said wrist pin bearing; and arranged to compress toward each other as said crank shaft bearing approaches said wrist pin bearing; and leaf springs lsecured between said legs and arranged to resist said approachment.

In testimony whereof, I aix my signature;

HENRY JONES. 

